CHANGELOG.md

Release 9.1.0

• module: Fixed large performance regression bug with resize mutex.
• module: Added RHEL 9 support.
• module: Added support for new ioctls.
• module: Fixed GFP_HIGHMEM page allocation bug.
• utility: Added NVMe Target loopback support.
• utility: Fixed issue #155 with strlen of NULL string segfault.
• utility: Reworked nvmet exports, unexports and port scanning logic (thank you Matteo Tenca).
• scripts: Added example BCC tools script.
• documentation: Added RPM building documentation.

Release 9.0.0

• module: Added code to capture page count metrics.
• module: Updated ioctl support.
• module: Fixed page alloc usage decrement on discard.
• module: Added shrink volume support.
• module: Added support for 5.19 Linux kernels (thank you Andrea Righi).
• module: Added support for 6.0 Linux kernels.
• utility: Added code to lock/unlock RAM device.
• utility: Added flag to suppress header in stdout (thank you Matteo Tenca).
• utility: Added support for RapidDisk "model" branding and support for revalidate size in NVMe Target logic.
• utility: Traced, found and fixed all discovered memory leaks (a huge undertaking, thank you Matteo Tenca!!!).
• utility: Rewrite daemon to execute commands from a shared library instead of popen to utility (another huge undertaking, thank you Matteo Tenca!!!).
• utility: Added checks in URL parsing logic for REST API (thank you Matteo Tenca).
• utility: Fix forking logic in daemon and remove need for realpath() usage (thank you Matteo Tenca).
• utility: Define and standardize error messaging for consistency and improve verbose mode (thank you Matteo Tenca).
• utility: Fix resize operation error messaging (github issue #142).
• utility: Cleaned up and optimized NVMe Target management.
• scripts: Fixed error checking in NVMe Target hostnqn script file.
• scripts: Added fio execution script file examples.
• scripts: Added valgrind test script to check for memory leaks (thank you Matteo Tenca).
• build: Update Makefiles and add support for CPPFLAGS, CFLAGS, LDFLAGS, etc. (thank you Matteo Tenca).
• build: Update Debian and RPM packaging with updated depends (thank you Matteo Tenca).
• documentation: Added dm-writecache stats notes.
• documentation: Added contrib file and cleaned up README and man pages.
• documentation: Added doxygen documentation support (thank you Matteo Tenca).

Release 8.2.0

• module: Fixed support for 5.14.
• documentation: Updated README files.
• utility: Fixed buffer overflow in NVMe structure.
• utility: Improved on MHD version check (thank you Matteo Tenca).
• utility: Clean up / optimize systemd service file.
• packaging: Improved and overhauled debian packaging (thank you Matteo Tenca).
• scripts: Optimized and fixed bugs for rapiddisk/cache on root during boot support (thank you Matteo Tenca).
• misc: Cleaned up Makefiles and impr ved dkms build/installation process.

Release 8.1.0

• module: Added support for 5.16 and 5.17 kernels (thank you Nitrooo)
• module: Fixed queue allocation defect for 5.15 kernel (thank you Nitrooo)
• module: Fixed ram drive allocation bug when sending invalid disk number (thank you betawaffle)
• utility: Expanded writecache stats to supported in 5.15+ kernels.
• misc: Cleaned up Makefiles

Release 8.0.1

• packaging: Fixed package descriptions
• misc: update authors file
• misc: updated copyright
• misc: added GPL disclaimer to files missing it

Release 8.0.0

• module: Updated for 5.14 and 5.15 kernels
• utility: Added NVMe Target support / framework
• utility: Added support for dm-writecache status readout in API
• utility: Module checker code now traverses via sysfs
• utility: Added module checker in daemon
• documentation: Clean up formatting and add content
• packaging: Fixed dependencies in spec and debian control files.
• misc: Cleaned up and optimized scripts to enable rapiddisk/cache on root during boot (thank you Matteo Tenca)

Release 7.2.1

• module: Added support for RHEL 8.4 kernel
• utility: Added support for libmicrohttpd v0.9.71 and newer while still supporting legacy versions

Release 7.2.0

• module: Updated for 5.12 kernels and later (thank you Michael)
• utility: remove unused headers (thank you Marcel Huber)
• utility: add CLI support for dm-writecache wrapper
• utility: Fixed property check bug when parsing sysfs block subtree params (github issue #55)

Release 7.1.0

• module: Updated for 5.9 kernels and later
• documentation: Updated copyrights

Release 7.0.1

• misc: Fixed typo in utility Makefile

Release 7.0.0

• module: Updated for 5.8 kernels and later
• module: fixed cache status format typo
• daemon: Implement http-driven API to monitor/manage rapiddisk/cache functions
• utility: Removing support for RHEL / CentOS 6.x
• utility: Restructured userspace CLI
• test: Restructured and improved test framework
• misc: Code / documentation cleanup

Release 6.1

• kernel: added support for 5.7 kernel
• utility: fixed GCC compilation warnings
• utility: code style cleanup
• installer: additional dkms installation/removal cleanup (thank you Shub77)
• documentation: fixed / updated README to reflect newer dkms installation/removal instructions
• documentation: updated copyright dates
• documentation: added AUTHORS file
• misc: added experimental scripts to enable rapiddisk/cache on root device during boot (thank you Shub77)

Release 6.0-1

• kernel: Fix dkms version in module/Makefile.
• installer: modified dkms installation/removal procedures (thank you Shub77)

Release 6.0

• kernel: Fixed module compilation error with modern version of GCC.
• utility: Remove dm-crypt code; Not sure why i had it in the first place. Doesn't really belong. Just use cryptsetup.
• utility: Removed archive/restore code and dependency on zlib. Again, can just use dd and tar. Is anyone even using this?
• misc: Updated licensing and logo location (thanks Boian!).

Release 5.2

• kernel: added support for 4.17 kernel.
• build: Cleaned up module clean Makefile.
• Updated Copyright years.

Release 5.1

• kernel: added support for 4.13 kernel.
• kernel: added support for 4.12 kernel (thank you Marcel Huber).
• utility: fixed compilation warnings (thank you Marcel Huber).

Release 5.0

• kernel: Remove kernel mainline specific code (intended for brd replacement).
• kernel: Change spinlock types to work better with virtio (github issue #13).
• test: Updated tests to a work with the modern version of RapidDisk.
• utility: Add JSON output for RapidDisk configuration (requires libjansson).
• www: remove fat-free (f3) RESTful API.

Release 4.5

• kernel: cache - Fixed I/O handler bug for 4.8+ kernels
• documentation: Cleaned up formatting and license disclaimers (thanks Boian!)

Release 4.4

• kernel: Update to 4.8 and 4.9 kernels.
• build: Cleaned up Makefiles (thanks Marcel!)

Release 4.3

• kernel: Add support for the 4.7 kernel (patch supplied by Marcel Huber)
• packaging: Updated DEB control for PHP changes between Ubuntu 14.04/16.04

Release 4.2-3

• utility: Fixed bug in make install with nocrypt enabled.
• documentation: clean up.

Release 4.2-2

• utility: Added more complex default DES key with backwards compatibility to legacy key.
• ha: added write around support to HA resource agents.
• documentation: corrections / clean up.

Release 4.2

• kernel: Added Write-Around support to rapiddisk-cache.
• kernel: Fixed LINUX_VERSION_CODE check for rapiddisk-cache to accommodate changes in 3.8.3.
• utility: Added a nocrypt build flag.
• utility: Added user definable keys for encryption setup.

Release 4.1-2

• kernel: Readjusted misaligned discard request check to build on kernels older than 4.3.

Release 4.1

• kernel: Refuse misaligned discard requests.
• kernel: Convert ENOMEM to ENOSPC when cannot alloc pages.
• kernel: Added 4k physical block size attribute.

Release 4.0-4

• Code cleanup.
• packaging: Also need to remove CONFIG_BLK_DEV_RAM_COUNT from distro specific packages.

Release 4.0-3

• utility: Fixed all references of RapidCache to RapidDisk-Cache.

Release 4.0-2

• utility: Updated fatfree-framework.
• utility: Addressed bug in RapidDisk REST implementation.

Release 4.0

• Fixed libcryptsetup build error for RHEL6.
• Renamed rxdsk/rxcache modules.
• Did massive cleanup of administration utility code.
• Converted most (if not all) return codes to POSIX.1 error numbers.
• Code cleanup in RESTful API.
• RapidDisk volumes now show up as non-rotational.
• Cleaned up ioctls in both module and utilies.

Release 3.7

• Cleaned up kernel module code.
• Fixed stack overflow bug in administration utility.
• Fixed error print statement in administration utility.
• Updated copyright years.
• Cleaned up build environment, including Makefiles.
• Fixed bug in configuring encryption on device.

Release 3.6-3

• Updated/corrected documentation in manual page and in source.

Release 3.6-2

• Fixed a memory leak in administration utility.
• Placed better checks before deallocating memory in administration utility.

Release 3.6

• Updated RapidDisk modules for Linux kernel version 4.4.

Release 3.5-2

• Updated kernel documentation.

Release 3.5

• Forcing rxdsk driver to do the drive enumeration. Removed functionality from administration utility.
• Appropriately initializing major number variable to 0 before registering block device module.
• Administration utility now checks for sysfs entry of rxdsk and not module name in /proc/modules.
• Converted sector size input in rxdsk module to KB input. Modified administration utility to this.
• Fixed bug in check for total rxdsk devices in module.

Release 3.4-2

• Updated Makefile for tools install to add HA scripts.
• Fixed bugs with HA scripts (both rgmanager and pacemaker).

Release 3.4

• Added ability to autoload RapidDisk volumes during module insertion.
• Fixed bug in RapidDisk (volatile) volume size definition across 32 to 64 bit types.
• Making use of BIT() macro in the driver.
• Removed RapidDisk-NV support. It was redundant with the recently kernel integrated pmem code.

Release 3.3

• Updated code for the 4.3 kernel.
• Cleaned up the main Makefile.
• Cleaned up entire driver code. Adjusted formatting.

Release 3.2

• Replaced procfs management to sysfs.
• Identified & corrected a couple of memory leaks.
• Massive code cleanup (intended for kernel submission).
• Minor code optimizations (slight performance improvements).

Release 3.1-2

• Fixed on-line menu of administration binary.
• Updated spec file to autoload modules after install.
• Corrected package description in spec file.

Release 3.1

• Fixed memory leak and an exit on failure before removing mutex during a procfs read.
• Added RESTful test file to test API from CLI.
• Integrated encryption support via dm-crypt.
• Enabled RPM builds for Red Hat / CentOS 6 & 7.
• Enabled RapidDisk YUM repo for Red Hat / CentOS 6 & 7 support.
• Added Pacemaker and rgmanager resource files to enable HA support.

Release 3.0

• Added NVDIMM support.
• Added RESTful API support.
• Updated administration binary and cleaned up a lot of its code.
• Removed pyRxAdm graphical wrapper.
• Fixed bug when erroring during RapidCache module insertion.
• Cleaned up RapidCache module code (removed procfs entry).

Release 2.13

• Bug fix with rxadm binary and mapping RapidCache to pre-existing partitions.
• Added more information to RapidDisk procfs file.
• Addressed compilation warnings for GCC 5.1

Release 2.12

• Updated modules for kernel 3.14

Release 2.11

• Updated rxcache for Red Hat 6.4 (device mapper conflict)
• Addressed incorrect description of maximum number of rxdsks supported.

Release 2.10

• Updated modules for kernel 3.10.
• Updated Makefile for cross compiling install.

Release 2.9.2

• Addressed a bug in rxdsk print statement (wrong type). Thanks go to Neo for discovering and patching it.

Release 2.9.1

• Minor update adding DKMS support.
• Adding support to build and install/uninstall tools separately (i.e. without modules, as in when installing with DKMS).

Release 2.9

• Added better implementation of BLKFLSBUF ioctl to rxdsk module. This will "flush data" and truncate pages.
• Added flush command to rxadm utility.
• Added support for Linux kernel 3.9. Tested on 3.9.2.

Release 2.8

• Cleaned up code and removed unused and unimplemented caching feature (write-around).
• Added support for Linux kernel 3.8. Tested on 3.8-rc7.

Release 2.7

• Made some modifications to the modules' makefile.
• Added support for Linux kernels 3.6 & 3.7. Tested on 3.6.9 and 3.7-rc8.

Release 2.6

• Minor rxcache kernel update: Make spinlocks less greedy by removing most of the disable ALL interupts spinlocks and replacing them with spinlocks to disable interrupts ONLY from bottom halves.

Release 2.5

• Added support for building in 3.4 and later Linux kernels.
• Update module Makefile to point to a different DESTDIR and KSRC (for cross-compiling)

Release 2.4

• Removed warning for RapidCache build.
• Addressed an issue with md raid 1 (mirror) and using rxdsk in which the md driver would routinely send i/o of size 0 and rxdsk would return an EIO, failing the array. Problem and solution found and provided by Dmitry Trikoz of Stratus Technologies.

Release 2.3

• Addressed warning generated for kernels 3.2 and later with the return type of the blk_queue_make_request request_queue function.
• Added comments and cleaned error messages in pyRxAdm.
• Added comments to rxadm files.

Release 2.2.1

• Added additional functionality to pyRxAdm (add, map, archive, restore) also added some more error checking.
• Fixed bug in rxadm (archive.c) during the archival process.
• Updated version no. (cmd/common.h, rxcommon.h) and removed b's to move from beta to production.
• Added a couple more switches to list version/help info of rxadm (main.c)
• Cleaned up rxadm logo for pyRxAdm (rxadm_logo_48x48.png)

Release 2.2

• Added cmd/pyRxAdm wrapper
• Modifed short-list feature output and modified error statement (cmd.c, common.h)
• Modified cmd/Makefile
• Added logo for wrapper (misc/rxadm_logo_48x48.png).
• Updated version no. (rxcommon.h)

Release 2.1

• Added --short-list support.
• Cleaned up debug messages on modules and added a couple of more.

Release 2.0.1

• Fixed bug #5 relating to using the rxadm utility without any nodes listed in /dev/mapper.
• Cleaned up a few messages in both rxdsk.c and rxcache.c.

Release 2.0

• Added rxcache write/read through caching module support.
• Added rxcache management features in rxadm utility.
• Modified input for archive/restore in rxadm to not use absolute path for rxdsk node. It maintains a form of consistency across all commands.

Release 1.4

• Fixed bug #4 by adding the BLKFLSBUF ioctl() command to process. This is specifically for when the user places an rxd node in an mdadm raid array.
  • Added a new test file to test the new ioctl command.
• Cleaned up the Makefiles a bit and now the user can build and install the kernel module from the root of the package tree as opposed to doing it from the module directory.

Release 1.3.2

• Fixed bug #3 which was for a warning during the build of rxadm on an x86_64 architecture. Thanks go to Gustaf Ullberg for discovering the root cause and providing a quick solution.

Release 1.3.1r2

• Removed the "b" from version strings to signify non-beta. This project seems to be production ready.
• Also added a test suite and some additional test tools for testing data integrity, performance, etc. This will help a lot for feature testing in future releases.

Release 1.3.1b

• Added check in management utility to make sure that rxdsk node is present before archiving and restoring compressed/ decompressed images.

Release 1.3b

• Added new feature to archive/restore an rxd volume to/from a zlib compressed data file (many thanks to Simon Ball for suggesting a similar feature).
• Added discard support.
• Added an ioctl to handle an invalid query sent by later versions of udev that correspond with Linux kernels 2.6.35 and above.
• Also integrated patch submitted by James Plummer of Stratus Technologies to address 32 bit limitation of rxadm utility rxdsk creation/resizing by casting the variable to a 64-bit type. Patch also included minor clean up code/optimizations for the same rxadm util.

Release 1.2b

• Optimized the configuring of the request queue.
• Added checks to build from 2.6.32 all the way to the latest (currently 3.0.3).

Release 1.1b

• Added support for dynamic resizing of attached rxdsk volumes.

Release 1.0b

• Official public release.